Question

Y+N+N+N=
please help me in this question

Answer 1

Answer:YNNN..... hehe

Don't know

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Given,

x

n

+y

n

x

n+1

+y

n+1

=

xy

.......... Geometric mean

⇒x

n+1

+y

n+1

=

xy

(x

n

+y

n

)

⇒x⋅x

n

−x

n

⋅x

2

1

⋅y

2

1

=y

n

⋅x

2

1

⋅y

2

1

−y⋅y

n

⇒x

n+

2

1

(

x

2

1

−y

2

1

)=y

n+

2

1

(

x

2

1

−y

2

1

)

⇒(

y

x

)

n+

2

1

=1

⇒(

y

x

)

n+

2

1

=(

y

x

)

0

⇒n+

2

1

=0⇒n=−

2

1